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Journal of Medical Entomology

Ilia Rochlin
Asian longhorned or bush tick (Haemaphysalis longicornis Neumann) is a vector species of considerable medical and veterinary importance within its native range in East Asia, and in introduced areas of Australia and Oceania. Recently, this tick species was detected in several regions of the United States. This study aimed at modeling areas suitable for H. longicornis in North America using maximum entropy distribution modeling or Maxent. Occurrence records of H. longicornis within its present range were obtained from published literature...
December 13, 2018: Journal of Medical Entomology
Deivys M Alvarez Garcia, Antonio Pérez-Hérazo, Eduardo Amat
Blowflies (Diptera: Calliphoridae) are necrophagous flies with ecological, medical, veterinary, and forensic importance. These flies carry pathogens that they spread to animals and humans, and produce myiasis. Furthermore, they are useful tools in forensic science as indicators of postmortem intervals, and in biomedicine they are successfully used in larval therapy. This study aimed to assess the spatiotemporal variation of the blowflies community from the urban area of Sincelejo City, located in the Colombian Caribbean region...
December 6, 2018: Journal of Medical Entomology
Lucy L Robb, Daniel A Hartman, Lauren Rice, Justin deMaria, Nicholas A Bergren, Erin M Borland, Rebekah C Kading
Western equine encephalitis (WEE) was once prevalent and routinely isolated from mosquitoes in Colorado; however, isolations of Western equine encephalitis virus (WEEV) have not been reported from mosquito pools since the early 1990s. The objective of the present study was to test pools of Culex tarsalis (Coquillett) mosquitoes sampled from Weld County, CO, in 2016 for evidence of WEEV infection. Over 7,000 mosquitoes were tested, but none were positive for WEEV RNA. These data indicate that WEEV either was not circulating enzootically in Northern Colorado, was very rare, and would require much more extensive mosquito sampling to detect, or was heterogeneously distributed spatially and temporally and happened to not be present in the area sampled during 2016...
December 6, 2018: Journal of Medical Entomology
Y T B Bambaradeniya, W A I P Karunaratne, J K Tomberlin, I Goonerathne, R B Kotakadeniya
Chrysomya bezziana Villeneuve is the major human myiasis producer in tropical countries, including Sri Lanka. Although of great medical and veterinary importance, only a single study has been published on the development of C. bezziana. This limitation is due in part to the difficulty of maintaining this species in a colony outside of using a living host. In this study, a novel technique that overcomes this limitation is presented along with development data for C. bezziana fed on three different meat types: swine muscle, swine liver, and bovine muscle at two temperature regimes: 35 and 37°C...
December 4, 2018: Journal of Medical Entomology
Cameron J Osborne, Paul R Crosbie, Tricia A Van Laar
Tick-borne relapsing fever (TBRF) is a potentially serious vector-borne disease endemic to the western United States. Vector surveillance is compromised by the nidicolous life history of the three Ornithodoros species that transmit TBRF to people in this region. Large-scale stationary trapping methods were developed to survey a wide geographical range of Ornithodoros spp. which are known to vector relapsing fever Borrelia spp. in California. Ninety-six Ornithodoros parkeri were collected from four locations in the foothills of Fresno and Madera Counties...
December 4, 2018: Journal of Medical Entomology
Djane C Baia-da-Silva, Alessandra S Orfanó, Rafael Nacif-Pimenta, Fabrício Freire de Melo, Suzan Simões, Iria Cabral, Marcus Vinicíus Guimarães Lacerda, Maria das Graças Barbosa Guerra, Wuelton M Monteiro, Nagila F C Secundino, Paulo F P Pimenta
The mosquito midgut is divided into two regions named anterior midgut (AMG) and posterior midgut (PMG). The midgut expands intensely after the blood ingestion to accommodate a large amount of ingested food. To efficiently support the bloodmeal-induced changes, the organization of the visceral muscle fibers has significant adjustments. This study describes the spatial organization of the Anopheles aquasalis (Culicidae, Anophelinae) midgut muscle network and morphological changes after bloodmeal ingestion and infection with Plasmodium vivax (Haemosporida, Plasmodiidae)...
December 1, 2018: Journal of Medical Entomology
Hui Liu, Daniel Dixon, Christopher S Bibbs, Rui-De Xue
Aedes aegypti Linnaeus (Diptera: Culicidae) is a primary vector of multiple arboviruses including Zika, dengue, chikungunya, and yellow fever. After incorporating BG lure or BG lure + octenol, the CDC's Autocidal Gravid Ovitrap (AGO) was more effective at collecting and controlling host-seeking female Ae. aegypti than gravid female mosquitoes. The addition of octenol to the AGO did not increase the number of female mosquitoes captured by the AGO, compared with the AGO alone. The AGO baited with the BG lure captured a significant number of host-seeking female Ae...
November 20, 2018: Journal of Medical Entomology
Hassan Nasirian, Aref Salehzadeh
Periplaneta americana (L.) (Blattaria: Blattidae), the American cockroach, is the most important invasive urban pest of sewer environments colonizing there with high significance of human public health and household allergens need to be controlled. Therefore this practical approach systematic review perform internationally to highlight and provide a detailed P. americana control in sewers. Of the 474 papers, 129 papers were selected to become this practical approach systematic review study of cockroach control in sewers...
November 20, 2018: Journal of Medical Entomology
A Haziqah-Rashid, C D Chen, K W Lau, V L Low, M Sofian-Azirun, I W Suana, H Harmonis, E Syahputra, A Razak, A C Chin, A A Azidah
This study was conducted to monitor the susceptibility status of Aedes aegypti (Linnaeus) larvae in the Sunda Islands of Indonesia against various organophosphates and organochlorines. Larval bioassay was performed in accordance with the World Health Organization standard protocol. Field-collected and reference strains of Ae. aegypti larvae were tested against diagnostic doses of eight larvicides belonging to organophosphates and organochlorines, namely bromophos (0.050 mg/liter), chlopyrifos (0.002 mg/liter), fenitrothion (0...
November 20, 2018: Journal of Medical Entomology
Priti Mondal, Debarati Dey, Tania Sarkar, Arghya Laha, Saibal Moitra, Srijit Bhattacharyya, Nimai Chandra Saha, Goutam Kumar Saha, Sanjoy Podder
House dust mites (HDMs) are the major constituents of house dust (HD). HD and HDM sensitization is well documented worldwide. Storage mite (SM) sensitization is presently lacking from India. The present study evaluated the sensitization of both HDM and SM among 372 allergic rhinitis patients reported to the Allergy and Asthma Research Center of Kolkata metropolitan, India. HD samples were collected from the patients' home and analyzed for the major constituent mites. HD and six constituent mites Dermatophagoides pteronyssinus (DP), Dermatophagoides farina Hughes (Acari: Pyroglyphidae) (DF), Blomia tropicalis (BT), Acarus siro Linnaeus (Acari: Acaridae) (AS), Lepidoglyphus destructor (LD), and Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) (TP) are tested for the allergenic potential through Skin Prick Test (SPT)...
November 20, 2018: Journal of Medical Entomology
Diawo Diallo, Cheikh T Diagne, Michaela Buenemann, Yamar Ba, Ibrahima Dia, Oumar Faye, Amadou A Sall, Ousmane Faye, Douglas M Watts, Scott C Weaver, Kathryn A Hanley, Mawlouth Diallo
The composition, density, diversity, and temporal distribution of mosquito species and the influence of temperature, relative humidity, and rainfall on these data were investigated in 50 sites across five land cover classes (forest, savannah, barren, village, and agriculture) in southeastern Senegal. Mosquitoes were collected monthly in each site between June 2009 and March 2011, with three people collecting mosquitoes landing on their legs for one to four consecutive days. In total, 81,219 specimens, belonging to 60 species and 7 genera, were collected...
November 14, 2018: Journal of Medical Entomology
Zachary C DeVries, Ahmed M Saveer, Russell Mick, Coby Schal
Bed bugs (Cimex lectularius L.) (Hemiptera: Cimicidae) are obligate hematophagous ectoparasites, and, therefore, must locate suitable hosts to ensure survival and reproduction. Their largely nocturnal activity suggests that chemosensory and thermosensory cues would play critical roles in host location. Yet, the importance of olfaction in host attraction of bed bugs remains unclear. We developed and validated a Y-tube, two-choice olfactometer and tested its suitability for investigating attraction to human odors (from skin swabs)...
November 12, 2018: Journal of Medical Entomology
Manuel Sebastião, Catarina Prado E Castro
The study of the arthropod fauna involved in carcass decomposition is crucial for medicolegal forensic purposes. This knowledge is especially needed in countries with high levels of criminality and where the arthropod fauna is still under-recorded and not well known, such as Angola. We present data from the first survey on sarcosaprophagous flies and beetles in Angola, conducted in Luanda over a 17-d period, in the wet summer season. In total, 881 adult and immature specimens, belonging to 18 species, were collected from three pig carcasses that were sampled daily...
November 12, 2018: Journal of Medical Entomology
Tohru Yanase, Tomoko Kato, Yoko Hayama, Hiroaki Shirafuji, Makoto Yamakawa, Shogo Tanaka
To test their virus susceptibility and capacity as transmission vectors, Japanese Culicoides species were artificially fed a mixture of Akabane virus (AKAV) and bovine blood, and virus recovery was attempted from infected midges 9-11 d post-exposure. Culicoides tainanus, C. punctatus, C. humeralis, C. jacobsoni, C. oxystoma, and C. asiana were found to be orally susceptible to AKAV. Virus titers in single infected midges of C. tainanus, C. oxystoma, C. punctatus, and C. jacobsoni ranged from 100.75 to 104.0 TCID50 (tissue culture infectious dose)...
November 10, 2018: Journal of Medical Entomology
Lv Xu, Lei Liu And, Tian-Yin Cheng
Haemaphysalis flava (Acari: Ixodidae) harbors pathogenic microorganisms and transfers these to hosts during blood feeding. Proteomic analysis in the midgut contents of H. flava detected glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and contig 1683 was retrieved as a GAPDH gene fragment by searching our previous transcriptomic library. In the study, the 5' and 3' ends of contig 1683 were cloned by rapid amplification of cDNA ends (RACE) and a full length, 1340 bp cDNA of Hf-GAPDH was obtained. The open-reading frame had 999 bp and coded for 333 amino acids...
November 9, 2018: Journal of Medical Entomology
Jomaa Chemkhi, Souheila Guerbouj, Walid Saadawi, Taher Shaibi, Sara Faris, Wissem Ghawar, Aicha Boukthir, Ikram Guizani, Badreddin Bashir Annajar, Afif Ben Salah
In Tunisia, 17 phlebotomine sand fly species are reported, belonging to genera Phlebotomus and Sergentomyia. However, subsequent to faunal studies and outbreaks of leishmaniasis in different regions of the country, unrecognized sand fly species could exist. Indeed, we report in this study the presence of Sergentomyia (Parrotomyia) lewisiParrot 1948. A brief collection of phlebotomine sand flies was undertaken in August 2016 in Khbina locality, in Sidi Bouzid governorate situated in Central Tunisia, which constitutes an old focus of Zoonotic Cutaneous Leishmaniasis...
November 8, 2018: Journal of Medical Entomology
Thiago Vasconcelos Dos Santos, Noel Fernandes Santos Neto, Yetsenia Del Valle Sánchez Uzcátegui, Allan Kardec Ribeiro Galardo
Trichophoromyia iorlandobaratai sp. n. Vasconcelos dos Santos, Santos Neto, Sánchez Uzcátegui & Galardo is described and illustrated on the basis of male specimens collected in the municipality of Itaituba, Pará State, Brazilian Amazonia. This species can be differentiated from other morphologically similar species within Trichophoromyia by means of the male characters such as the ratio between the aedeagal ducts/sperm pump, shape and distribution of setae in the gonocoxite, and particularly the distinct shape of paramere...
November 6, 2018: Journal of Medical Entomology
Hiroyuki Takaoka, Wichai Srisuka, Van Lun Low, Atiporn Saeung
A man-biting black fly species so far regarded as Simulium rufibasis Brunetti in Thailand was morphologically analyzed. It was found to be almost indistinguishable in the female from S. rufibasis sensu stricto but distinguishable in the male by the slender fore basitarsus and abdominal segments 2, 6, and 7 each with a pair of shiny dorsolateral patches, and in the pupa by the absence of spine-combs on abdominal segment 7 and terminal hooks on segment 9. It is described as a new species, Simulium tenebrosum...
November 6, 2018: Journal of Medical Entomology
Hiroyuki Takaoka, Wichai Srisuka, Van Lun Low, Atiporn Saeung
Simulium undecimum sp. nov. is described from Thailand. This new species is assigned to the Simulium multistriatum species-group, one of the 20 species-groups of the subgenus Simulium in the Oriental Region. It is characterized by the female cibarium with minute processes, male ventral plate with a narrow body having two vertical rows of distinct teeth on the posterior surface and without setae on the anterior and lateral surfaces, pupal gill with eight short filaments decreasing in length from dorsal to ventral, and divergent at an angle of around 90 degrees when viewed laterally, spine-combs only on abdominal segments 7 and 8, and cocoon wall-pocket shaped with anterolateral windows...
November 6, 2018: Journal of Medical Entomology
Carlos Brisola Marcondes
No abstract text is available yet for this article.
November 5, 2018: Journal of Medical Entomology
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